It's not quite that obvious. Compared to desktop/server where almost any jit is a win, there's substantial pressure on memory usage and battery life. An interpr

It's not quite that obvious. Compared to desktop/server where almost any jit is a win, there's substantial pressure on memory usage and battery life. An interpreter can do better on whole-system performance for both of those, without special care for when to run the jit, and how it's implemented. I'm looking forward to seeing Bill Buzbee's talk on the JIT at I/O (of the most excellent http://www.homebrewcpu.com/ http://www.homebrewcpu.com/ incidentally! :)